Note
QST, Oct 1945, p. 121.
QST, Nov 1945, p. 69. (A few notes)
QST, Nov 1945, p. 117.
NC-2-40D QST, Jul 1946, inside back cover. "D" version has amateur band spread)
QST, Oct 1946, p. 135. (NC-2-40-D)
QST, Nov 1946, inside back cover. (NC-2-40-D)
Concord catalog 9-47, p. 160.
Allied catalog 1948 p. 156. (NC-2-40D info)
Lafayette catalog number 89, p 175.
QST, Jul 1950, p. 103. (these might be NOS)
The 12-tube set covered 0.49–30 MHz in six bands. Band switching the NC-2-40C was accomplished by pulling out the main-tuning knob, which engaged gears on the receiver’s moving-coil catacomb. Turning the knob shifted the coil rack until the desired band was selected. When the knob was pushed back in, it re-engaged the tuning capacitor.
In addition to its general-coverage tuning range of 0.49-30 MHz, the NC-2-40D had expanded band-spread coil ranges for the 80, 40, 20, and 10 meter amateur bands. Each band occupied 80% of the dial space. The 12-tube receiver used National's moving-coil catacomb and had an improved crystal filter and series noise limiter.
Often seen as "NC-240"
